Singer Jewel has turned to the Bible to perfect her diet.

The God-fearing Standing Still hitmaker has given up fast food and unhealthy snacks - she only eats things that were available to Jesus Christ and his pals.

She tells In Touch magazine, "I do the Biblical diet, which means eating whole foods like they did in the time when the Bible was being written - so grass-fed beef, but no chemicals or genetically altered foods."